R&S ZNB Series User Manual page 351

®
R&S ZNB/ZNBT
5.5.5.2 Low Pass Settings dialog
The "Low Pass Settings" dialog defines the harmonic grid for low pass time domain
transforms.
Access: Trace – [Trace Config] > "Time Domain" > "Low Pass Settings..."
Background information
Refer to
Is the Current Grid Harmonic?
The area at the top of the "Low Pass Settings" dialog indicates whether the current fre-
quency grid is harmonic.
Remote command:
[SENSe<Ch>:]HARMonic?
Set Harmonic Grid and Keep
The three buttons provide alternative algorithms for calculation of a harmonic grid,
based on the current sweep points.
●
Keep "Stop Frequency and Number of Points" calculates a harmonic grid based on
the current "Stop Frequency" (see
quency / Span Frequency"
(see
gap (i.e. the
●
Keep "Frequency Gap and Number of Points" calculates a harmonic grid based on
the current "Stop Frequency" and the current frequency gap (i.e. the "Freq Step
Size").
●
Keep "Stop Frequency and Approximate Frequency Gap" calculates a harmonic
grid based on the current "Stop Frequency", increasing the "Number of Points" in
such a way that the frequency gap (i.e. the "Freq Step Size") remains approxi-
mately the same. This algorithm can increase the sweep time, due to the additional
sweep points introduced.
User Manual 1173.9163.02 ─ 62
Chapter 4.7.2.4, "Harmonic
"Number of Points" on page 423). This algorithm can increase the frequency
Freq Step Size) .
grid", on page 225.
"Start Frequency / Stop Frequency / Center Fre-
on page 414) and the current number of sweep points
GUI reference
Trace Config softtool
351